JPS625820A - Method and device for manufacturing molded part from solid or microporous plastic consisting of at least two kind of fluidizing reaction component, particularly, fluidizing reaction mixture having polyurethane formability - Google Patents

Method and device for manufacturing molded part from solid or microporous plastic consisting of at least two kind of fluidizing reaction component, particularly, fluidizing reaction mixture having polyurethane formability

Info

Publication number
JPS625820A
JPS625820A JP61144026A JP14402686A JPS625820A JP S625820 A JPS625820 A JP S625820A JP 61144026 A JP61144026 A JP 61144026A JP 14402686 A JP14402686 A JP 14402686A JP S625820 A JPS625820 A JP S625820A
Authority
JP
Japan
Prior art keywords
mold
closing
push
closed position
reaction mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP61144026A
Other languages
Japanese (ja)
Other versions
JPH0570565B2 (en
Inventor
ハインリツヒ・ボーデン
ヴアルター・シユナイダー
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of JPS625820A publication Critical patent/JPS625820A/en
Publication of JPH0570565B2 publication Critical patent/JPH0570565B2/ja
Granted legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/246—Moulding high reactive monomers or prepolymers, e.g. by reaction injection moulding [RIM], liquid injection moulding [LIM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/5615—Compression stroke, e.g. length thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/83—Injection molding of polyolefin-type foam

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、成形金型を付設された閉鎖ユニットによって
閉鎖し、反応混合物を導入すると共に、この導入が終了
した後に金型中空部内の圧力を導入過程の際に内部で支
配する圧力よりも高くし、かつ成形金型を成形部品の硬
化過程が終了するまで閉鎖させ続け、次いで開放して成
形部品を取り出す、少なくとも２種の流動性反応成分か
らなる密実もしくは微孔質プラスチック、特にウレタン
形成性の流動性反応混合物から成形部品を製造する方法
および装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The invention provides a method for closing a mold by means of an attached closing unit, introducing a reaction mixture, and reducing the pressure in the mold cavity after this introduction has ended. is higher than the internally prevailing pressure during the introduction process, and the mold is kept closed until the curing process of the molded part is completed, and then opened to remove the molded part. The present invention relates to a method and an apparatus for producing molded parts from solid or microporous plastics, in particular urethane-forming, flowable reaction mixtures of the components.

〔従来の技術〕[Conventional technology]

本発明は、成形金型内で生成する際に把持される成形部
品に対し後期圧力をかけて陥没個所や他の表面欠陥を防
止することを目的とする。この種の圧力増加は、多くの
場合、いわゆるＲＩＭ−技術（反応−射出成形）の際特
に必要とされる。この後期圧力を、反応混合物にガスを
極めて強度に負荷させて発生させることが検討されてい
る。しかしながら、この手段は約２．５１以上の肉厚を
有する成形部分の場合には、表面欠陥を防止する僅かの
所望の効果しか得られない。しかも、流路が長くかつ寸
法の小さい金型中空部を流過する際、発生する動圧は反
応混合物における部分的な望ましくないガス損失をもた
らす。この損失したガスは、反応混合物の極めて急速な
固化と、発生する反応低下とにより、もはや圧力均衡に
達しえない。The present invention aims to apply late pressure to molded parts gripped during production in a mold to prevent cavities and other surface defects. Pressure increases of this type are often required especially in the so-called RIM technology (reaction injection molding). It has been considered to generate this late pressure by loading the reaction mixture very strongly with gas. However, this measure has only a marginally desired effect in preventing surface defects in the case of molded parts having a wall thickness of approximately 2.5 mm or more. Moreover, when the flow path passes through a mold cavity of long length and small dimensions, the dynamic pressure generated leads to undesired partial gas losses in the reaction mixture. This lost gas can no longer reach a pressure equilibrium due to the very rapid solidification of the reaction mixture and the reaction drop that occurs.

流入速度が遅過ぎたり或いは充填時間が長過ぎる場合に
は、混合物導入に際し、発生する固化反応によって粘度
上昇が始まり、特に接合近傍の領域で圧力上昇を伴なう
。硬化の際のたとえば７０バールもしくはそれ以上とい
う均一な後期圧力増加は、後期圧力制御のこの技術では
達成することができない。If the inflow rate is too slow or the filling time is too long, upon introduction of the mixture, the solidification reaction that occurs begins to increase the viscosity, which is accompanied by an increase in pressure, especially in the region near the joint. A uniform late pressure increase during curing, for example of 70 bar or more, cannot be achieved with this technique of late pressure control.

気泡形成性反応混合物の場合、相応の過充填で操作する
ことも検討されている。この場合には、成形部品材料の
望ましくない大きい厚さを有し、かつ過充填により多量
の材料が浪費される。この技術の場合、剛性の低い成形
金型および閉鎖ユニットを使用して、その「通気」を利
用する。強力かつ不均一なパリと、低い締付は圧力と、
再現性の悪い寸法精度とが、高品質を有する成形部品の
大規模生産を阻害する。達成しうる圧力レベルが低いた
め、成形部品の表面における泡の発生を、鋭いエツジの
移行領域にて確実には克服できない。In the case of gas-forming reaction mixtures, operation with corresponding overfilling has also been considered. In this case, there is an undesirably large thickness of the molded part material and a large amount of material is wasted due to overfilling. This technique uses a less rigid mold and closure unit to take advantage of its "ventilation". Strong and uneven pressure, low tightening reduces pressure,
Dimensional accuracy with poor reproducibility hinders large-scale production of molded parts with high quality. Due to the low pressure levels that can be achieved, the formation of bubbles on the surface of the molded part cannot be reliably overcome in the transition areas of sharp edges.

さらに、混合ヘッドと固をの金型中空部との間に配置さ
れた貯蔵ピストンを用いて操作することも検討されてい
る（米国特許第４２５６６７９号に対応するドイツ特許
公開第２８２９０１６号）。Furthermore, it has also been considered to operate with a storage piston arranged between the mixing head and the solid mold cavity (DE 2829016, corresponding to US Pat. No. 4,256,679).

この場合、貯蔵容積の周囲の金型中間部を混合物導入前
に広げ、次いで圧力をかけて、より高い圧力を発生させ
る。成形部品に対するマーキングは避けられない。この
後期圧力制御は、さらに貯蔵ピストンと貯蔵シリンダと
の間の厚い間隙に対する反応混合物の侵入および固化に
よって影響を受ける。形状が異なる特に長い成形部品の
場合、この実施形態は殆んど利用することができない。In this case, the middle part of the mold around the storage volume is widened before the introduction of the mixture and then pressurized to generate a higher pressure. Marking of molded parts is unavoidable. This late pressure control is further influenced by the penetration and solidification of the reaction mixture into the thick gap between the storage piston and the storage cylinder. In the case of particularly long molded parts with different shapes, this embodiment is hardly usable.

何故なら、固化が進行するため全中空部にわたる圧力伝
達がもはや確保されないからである。This is because, due to the progress of solidification, pressure transmission over the entire hollow space is no longer ensured.

さらに、弾性の内壁領域を有する成形金型を使用するこ
とも検討されており（米国特許第４３１４９５５号に対
応するヨーロッパ特許第２４６１０号）、この場合対応
する領域に裏側から力をかけることができる。この種の
成形金型の欠点は、弾性壁部頭載の均一な加熱もしくは
冷却が困難なことにある。さらに、この場合には成形部
品の寸法精度が確保されないという欠点も、生ずる。Furthermore, it has been considered (European Patent No. 24610 corresponding to US Pat. No. 4,314,955) to use molds with elastic inner wall areas, in which case forces can be applied to the corresponding areas from the back side. . A disadvantage of this type of mold is that it is difficult to uniformly heat or cool the head of the elastic wall. Furthermore, in this case, there is also the disadvantage that the dimensional accuracy of the molded parts cannot be ensured.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

本発明の目的は、成形金型で必要とされる後期圧力を、
形状の複雑な特に細長い成形部品も無傷でかつ金型およ
び寸法に忠実に製造することができ、通常の充填量許容
範囲で操作することができ、さらに急速に反応する反応
混合物をも効果的に加工しうるように印加する方法およ
び装置を提供するにある。The purpose of the present invention is to reduce the late pressure required in the molding die.
Particularly elongated molded parts with complex geometries can be manufactured intact and true to mold and dimensions, can be operated within normal filling tolerances, and even rapidly reacting reaction mixtures can be produced effectively. An object of the present invention is to provide a method and apparatus for applying an electric current so that it can be processed.

〔問題点を解決するための手段〕[Means for solving problems]

上記目的は、本発明によれば、充填過程前に成形金型を
第１閉鎖位置まで移動させ、この第１閉鎖位置にて閉鎖
運動に対し垂直に存在する金型中空部の成形面を第２終
端閉鎖位置における間隔よりも最高５１）Ｉ１）大きい
間隔まで互いに接近させ、これら成形金型半部の位置を
充填過程の間維持すると共に、これら成形金型半部を充
填過程の終了後に初めて終端閉鎖位置に到らしめること
により達成される。According to the invention, the above object is achieved by moving the molding mold to a first closing position before the filling process, in which the molding surface of the mold cavity lying perpendicular to the closing movement is moved to a first closing position. 2) close to each other to a distance that is at most 51)I1) greater than the distance in the end-closed position, the position of these mold halves is maintained during the filling process, and the mold halves are moved only after the end of the filling process. This is achieved by reaching the end closed position.

充填過程の開始前、この新規な方法を最適化するには、
好ましくは成形金型を第１閉鎖位置まで移動させ、この
第１位置にて閉鎖運動に対し垂直に存在する金型中空部
の成形面を第２閉鎖位置における間隔よりも０．０１〜
１ｍｍ大きい間隔まで互いに接近させる。To optimize this new method before starting the filling process,
Preferably, the mold is moved to a first closed position, and in this first position the molding surface of the mold cavity, which is perpendicular to the closing movement, is spaced by 0.01 to 0.01 to less than the distance in the second closed position.
Make them close to each other to a distance of 1 mm.

これにより剛性かつ形状安定な成形金型を使用すること
が可能となり、その固有の剛性が極めて大きいため金型
中空部は外部もしくは内部からの圧力作用に際し無視し
うる程度の僅かの変形しか受けない。したがって、製造
される成形部品の寸法精度も同様に成形金型によって確
保される。終端閉鎖位置への移動により、必要に応じ制
御しうる高い後期圧力を蓄積することができる。この場
合、後期圧力と充填過程の際の圧力との間の差を、通常
の場合７〜約７０バール、必要ならばそれよりもずっと
高い約２５０バールにすることもできる。一般に、導入
される反応混合物は、まだ可塑変形しうる状態で閉鎖ユ
ニットの締付は圧力下に金型中空部へ充分に充填される
。終端閉鎖位置への成形金型半部の移動により、これに
連携する中空部の容積縮少を介し後期圧力が得られる。This makes it possible to use rigid and shape-stable molds, whose inherent rigidity is so high that the hollow part of the mold undergoes only negligible deformation when pressure is applied from the outside or inside. . Therefore, the dimensional accuracy of the manufactured molded parts is also ensured by the molding die. The movement to the end-closed position allows a high late pressure to be built up, which can be controlled as required. In this case, the difference between the late pressure and the pressure during the filling process is usually from 7 to about 70 bar, but if necessary it can also be much higher, about 250 bar. Generally, the clamping of the closing unit sufficiently fills the mold cavity under pressure while the reaction mixture introduced is still capable of plastic deformation. By moving the mold half into the end-closed position, a late pressure is achieved through the associated volume reduction of the hollow space.

初期閉鎖位置と終端閉鎖位置との間の行程の大きさおよ
びその調時制御は、たとえば成形金型中空部の寸法およ
び形状、場合によっては反応混合物の発泡程度および化
学材料の収縮など、各種の因子に依存する。かくして、
終端閉鎖位置は、たとえば化学的収縮および物理的収縮
の１部が有効となった後に始めて達成することができる
。The magnitude of the stroke between the initial closing position and the final closing position and its timing control depend on various factors, such as, for example, the size and shape of the mold cavity, and possibly the degree of foaming of the reaction mixture and shrinkage of the chemical material. Depends on factors. Thus,
The end-closed position can only be achieved, for example, after some of the chemical and physical contractions have taken effect.

基本的に、この新規な方法は、それぞれ閉鎖自在な成形
金型を用いて閉鎖ユニットの利用により行なうことがで
きる。充填過程に際しより大きい間隙部が必要であれば
、いわゆるプランジャエツジ（Ｔａｕｃｈｋａｎｔｅｎ
ｗｅｋｚｅｕｇ）を有利に使用すルコとができる。この
種の金型は周知されている。これは、一方の成形金型半
部の成形領域における縁部形状が他方の成形金型半分の
成形領域における縁部形状と連携して、閉鎖運動に対し
平行な摺動シールを形成することを特徴とする。充填過
程に際し両成形金型半分の間に残存させる「間隙部」が
どのような寸法を持たねばならないかは、各成形金型に
つき或いは処理すべき化学系につき実験によって最もよ
く決定することかができる。したがって、これは得られ
る成形部品の厚さおよび密度に依存する。「間隙部」の
維持または閉鎖に必要とされる力は、機械的、空気圧力
式または液圧式で加えることができる。当業者は液圧式
方法を好むであろう。何故なら、この方法は後期圧力の
増加および予備選択しうる変化に対し最も融通性のある
可能性を与え、かつ大抵の閉鎖ユニットにつきエネルギ
を利用しうるからである。In principle, the new method can be carried out by the use of a closing unit, each with a closing mold. If larger gaps are required during the filling process, so-called plunger edges are used.
It is possible to use the word "wekzeug" to advantage. Molds of this type are well known. This ensures that the edge profile in the forming area of one mold half cooperates with the edge profile in the forming area of the other mold half to form a sliding seal parallel to the closing movement. Features. The dimensions of the "gap" that must remain between the mold halves during the filling process are best determined by experiment for each mold or chemical system to be treated. can. This therefore depends on the thickness and density of the molded part obtained. The force required to maintain or close the "gap" can be applied mechanically, pneumatically, or hydraulically. Those skilled in the art will prefer hydraulic methods. This is because this method offers the most flexible possibilities for late pressure increases and preselectable changes, and makes use of energy for most closing units.

好ましくは、混合物導入の際の終末閉鎖運動は閉鎖ユニ
ットの閉鎖力より大きい抗力によって阻止され、この抗
力は混合物導入の終了後に解除される。Preferably, the final closing movement during introduction of the mixture is counteracted by a drag force that is greater than the closing force of the closure unit, which drag force is released after the end of the introduction of the mixture.

この実施態様は特に液圧操作に適しており、この場合工
程は極めて良好に自動制御することができる。This embodiment is particularly suitable for hydraulic operation, in which case the process can be very well controlled automatically.

少なくとも２種の流動性反応成分からなる密実もしくは
微孔質プラスチック、特にポリウレタン形成性の流動性
反応混合物から成形部品を製造するための本発明による
装置は閉鎖ユニットと成形金型および反応成分用の混合
装置とからなり、それぞれ一方の成形金型半分は閉鎖ユ
ニットの各基板に配置される。The device according to the invention for producing molded parts from solid or microporous plastics, in particular polyurethane-forming, fluid reaction mixtures consisting of at least two fluid reaction components, comprises a closed unit and a mold and a reaction component. a mixing device, one half of the molding die being placed on each base of the closing unit.

この新規性は、閉鎖ユニットの閉鎖力に抗して混合物導
入の際に作用する押上部材を成形金型に付設し、その行
程に制限を設けかつ調時制御しうろことにある。The novelty consists in attaching to the mold a lifting element which acts during the introduction of the mixture against the closing force of the closing unit, the stroke of which can be limited and timed.

これにより、押上部材を混合物導入の際に、金型中空部
の対応する容積拡大を確保するような位置に保つことが
できる。この新規な装置のための閉鎖ユニットとしては
、実質的に市販されている全ての閉鎖ユニットが適して
いる。さらに装着しうる混合装置、組込まれた混合ヘッ
ドまたは一体化した混合ヘッドを有する公知の成形金型
も、これに使用することができる。押上部材としては、
機械的に伸長しうる偏心レバー、調節自在なねじボルト
などが考えられる。This makes it possible to keep the push-up member in such a position as to ensure a corresponding volume expansion of the mold cavity during the introduction of the mixture. Virtually all commercially available closure units are suitable as closure units for this new device. Furthermore, known molding molds with attachable mixing devices, integrated mixing heads or integrated mixing heads can also be used here. As a push-up member,
Possible examples include mechanically extendable eccentric levers and adjustable threaded bolts.

しかしながら、好ましくはこの押上部材は、ピストンお
よびシリンダを備えた単行程液圧ユニットで構成される
。Preferably, however, this lifting member is constituted by a single-stroke hydraulic unit with a piston and a cylinder.

或いは、この目的で押上部材を液圧クッションで構成す
ることもできる。Alternatively, the lifting member can also be constructed with a hydraulic cushion for this purpose.

これら両液圧式の実施態様は、制御プログラムの経過に
対し係合性が比較的弱い場合、必要とされる力を迅速か
つ確実に加えることができる。Both of these hydraulic embodiments can quickly and reliably apply the required force when the engagement with the course of the control program is relatively weak.

特定実施例によれば、押上部材を閉鎖ユニットに配置し
、これに側基板の一方を固定すると共に他方の基板に作
用させる。According to a particular embodiment, a push-up member is arranged on the closure unit, to which one of the side substrates is fixed and acts on the other substrate.

好ましくは、押上部材を一方の基板に配置すると共に、
制御自在な支持部材を他方の基板に配置する。Preferably, the push-up member is disposed on one of the substrates, and
A controllable support member is disposed on the other substrate.

これにより、成形金型用の閉鎖ユニットを種々異なる高
さで使用することができ、さらに調整自在な支持部材に
より成形金型半部間における「間隙部」の必要な高さを
混合物導入の際に調整することができる。しかしながら
、この間隙部高さは、たとえば離間プレート或いは液圧
ピストンに直接付設された調整自在なストッパーなどの
他の手段によって規定することもできる。This allows the closure unit for the mold to be used at different heights, and the adjustable support element allows the required height of the "gap" between the mold halves to be adjusted during the introduction of the mixture. can be adjusted to However, the gap height can also be defined by other means, such as a spacing plate or an adjustable stop attached directly to the hydraulic piston.

代案として、押上部材は成形金型に一体化することもで
きる。この実施例は、構造部材して形成されかつ成形金
型に直接固定された押上部材に相当する。Alternatively, the push-up member can be integrated into the mold. This embodiment corresponds to a push-up member formed as a structural member and fixed directly to the mold.

この種の実施例は、大面積の成形金型の場合に有利であ
る。何故なら、押上部材を金型中空部に対しできるだけ
近接させることができ、これにより望ましくない成形金
型の変形を借手に保ち得るからである。Embodiments of this kind are advantageous in the case of large-area molds. This is because the push-up member can be placed as close as possible to the mold cavity, thereby preventing undesired deformation of the mold.

好ましくは、押上部材のための力発生装置を閉鎖ユニッ
ト用の力発生装置と連結し、これら両装置を制御装置内
の混合装置のプログラム送信器に対し制御技術で連結す
る。Preferably, the force-generating device for the lifting member is connected to the force-generating device for the closing unit, and both devices are connected by control technology to a program transmitter of the mixing device in the control device.

この実施例によれば、装置は工程を自動化することがで
きる。制御装置は先ず最初に閉鎖ユニット用の力発生装
置を付勢し、次いで押上部材用の力発生装置を付勢し、
或いはその逆とすることもできる。成形金型半部が導入
過程の初期閉鎖値１となったら直ちに、混合装置を作動
させかつ反応混合物を金型中空部に導入する。目的とす
る混合、物の量に一致した所定の時間間隔の後、混合装
置を再び減勢する。According to this embodiment, the device can automate the process. the control device first energizes the force generator for the closing unit and then the force generator for the push-up member;
Or it can be done vice versa. As soon as the mold half has reached the initial closing value of 1 for the introduction process, the mixing device is activated and the reaction mixture is introduced into the mold cavity. After a predetermined time interval corresponding to the desired mixing amount, the mixing device is deenergized again.

制御装置内の他のタイムリレーを所定の時間間隔に設定
し、その終了後に制御装置は押上部材用の力発生装置を
解除し、これにより得られた閉鎖ユニットの閉鎖力に基
づき成形金型半部を終端閉鎖位置に到らしめ、かくして
所望の後期圧力を発生させる。この場合、必要に応じ後
期圧力の所望の変化は、対応の時間的に段階を設けた液
圧閉鎖圧力の制御によっても、或いは支持圧力によって
も行なうことができる。Another time relay in the control device is set to a predetermined time interval, after which the control device releases the force generator for the push-up member and, based on the resulting closing force of the closing unit, controls the mold half. to the end-closed position, thus creating the desired late pressure. In this case, the desired change in the late pressure can be effected, if necessary, either by a corresponding temporally stepped control of the hydraulic closing pressure or by means of the support pressure.

他のタイムリレーを成形部品の硬化時間に設定し、かつ
この時間間隔の経過後に閉鎖ユニットの力発生装置を作
動させて成形金型を開放する。成形部品を取出した後、
次のサイクルを開始することができる。Another time relay is set to the curing time of the molded part and, after this time interval has elapsed, the force generator of the closing unit is actuated to open the mold. After removing the molded part,
The next cycle can begin.

さらに代案として、閉鎖過程を２段階で進行させうる液
圧式またはベルクランク式閉鎖機構も通しており、第２
段階で液圧式の圧力クッションを高圧力の発生に使用す
る。Further alternatives include a hydraulic or bell-crank closure mechanism that allows the closure process to proceed in two stages, with the second
A hydraulic pressure cushion is used to generate high pressure in stages.

〔実施例〕〔Example〕

以下、縦断面図で示した添付図面を参照して、本発明に
よる新規な装置を多ぐの実施例につき一層詳細に説明す
る。In the following, a number of embodiments of the novel device according to the invention will be explained in more detail with reference to the accompanying drawings, which are shown in longitudinal section.

第１図において、閉鎖ユニット１はその両基板２．３並
びにその液圧式力発生装置４によって示されている。こ
の力発生装置４は、個々に導管６．７を介し切換弁５に
接続されたピストンシリンダユニット８によって構成さ
れる。導管９は、貯槽１）から吸引する液圧ポンプ１０
に通ずる。放出導管１２は、切換弁５から貯槽１）に復
帰している。切換弁５は、パルス導線１３を介し制御装
置１４に接続される。In FIG. 1, the closing unit 1 is shown by its two base plates 2.3 as well as by its hydraulic force generator 4. In FIG. This force generating device 4 is constituted by a piston-cylinder unit 8 which is individually connected to the switching valve 5 via a line 6.7. The conduit 9 is connected to a hydraulic pump 10 which draws suction from the storage tank 1).
It leads to The discharge conduit 12 returns from the switching valve 5 to the storage tank 1). The switching valve 5 is connected via a pulse line 13 to a control device 14 .

基板２．３上にはプランジャエツジ金型として形成した
成形金型１７の成形金型半部１５．１６を装着し、これ
らにより金型中空部１８を包囲する。反応成分ポリオー
ルおよびイソシアネートを混合するための混合装置！１
９が、上部金型成形半部１５に一体化して示されている
。混合室中に好ましくは吐出ピストンを挿通してなるこ
の種の混合装置は周知されているので、ここに詳細に説
明する必要はない。混合装置１９には切換弁２２．２３
を備えた導管２０，２１をも付設し、これら切換弁から
戻し流路２４．２５を貯蔵容器（図示せず）に連通ずる
。切換弁２２．２３はパルス導線２６を介し制御装置１
４に接続される。The mold halves 15,16 of the mold 17, which are formed as plunger edge molds, are mounted on the base plate 2.3 and surround the mold hollow 18. Mixing equipment for mixing reactive component polyols and isocyanates! 1
9 is shown integrated into the upper mold half 15. Mixing devices of this type, preferably consisting of a dispensing piston inserted into a mixing chamber, are well known and need not be described in detail here. The mixing device 19 has switching valves 22 and 23.
Conduits 20, 21 are also provided, with return channels 24, 25 communicating from these switching valves to a storage container (not shown). The switching valves 22, 23 are connected to the control device 1 via the pulse line 26.
Connected to 4.

基板３上には、規則的間隔で成形金型１７の周囲に押上
部材２７を配置する（そのうち１個のみを図示する）。On the substrate 3, push-up members 27 are arranged around the molding die 17 at regular intervals (only one of them is shown).

これら押上部材は液圧式ピストンシリンダユニットとし
て形成されており、液圧ポンプ２日によって切換弁２９
に接続された配管系３０を介し作動させることができる
。切換弁２９の作動により、配管３０は戻し配管３１を
介して負荷解除される。この切換弁２９はパルス導線３
２を介し制御装置１４に接続されている。他方の基板２
上には、押上部材２９に対向位置して調整自在な支持部
材３３を配置する。これら支持部材はそれぞれ個々に基
板２に固定されたねしスリーブ３４で構成され、このね
じスリーブ中にねし山を設けた支持ボルト３５を挿通ず
る。ボルトには固定ナツト３６を取付ける。この固定ナ
ツト３６により支持ボルト３５の有効端部の高さを成形
金型１７の高さに一致させることができ、同時に後期圧
力をかける前の金型中空部１８の高さを決定する初期閉
鎖位置を設定することができる。These push-up members are formed as a hydraulic piston cylinder unit, and a switching valve 29 is operated by a hydraulic pump.
It can be operated via a piping system 30 connected to. By actuating the switching valve 29, the load on the pipe 30 is released via the return pipe 31. This switching valve 29 is connected to the pulse conductor 3
2 to the control device 14. The other board 2
An adjustable support member 33 is disposed above the push-up member 29 to face it. These support members each consist of a threaded sleeve 34 which is individually fixed to the base plate 2, into which threaded support bolts 35 are inserted. Attach the fixing nut 36 to the bolt. This fixing nut 36 makes it possible to match the height of the effective end of the support bolt 35 to the height of the mold 17, and at the same time determines the height of the mold hollow 18 before applying the later pressure during initial closure. You can set the location.

第２図による装置の実施例の場合、第１図による実施例
と相違する点は、押上部材として作用する液圧式ピスト
ンシリンダユニットの代りに液圧式圧力クッション４１
を使用することだけである。In the embodiment of the device according to FIG. 2, the difference from the embodiment according to FIG.
All you have to do is use .

各圧力クッション４１はハウジング４３を備えた閉鎖ピ
ストン４２から構成され、これら両者を基板４４に固定
する。ハウジング４３は、それぞれ１個の弾性変形しう
る前壁部４５を備え、この前壁部はその下に存在する液
圧室４６が圧力を受けた際に相応に***する。押上部材
４１および閉鎖ユニット４７のための力発生装置（図示
せず）並びに制御装置および混合装置４８は、第１図の
構成と同様である。ここでも同様な構造の支持部材４９
を他方の基板５０に配置する。その構成は、第１図に示
した支持部材と同様である。Each pressure cushion 41 consists of a closing piston 42 with a housing 43, both of which are fixed to a base plate 44. The housings 43 each have an elastically deformable front wall 45 which correspondingly bulges out when the underlying hydraulic chamber 46 is under pressure. The force generating device (not shown) for the lifting member 41 and the closing unit 47 as well as the control and mixing device 48 are similar to the arrangement in FIG. Here too, a support member 49 with a similar structure
is placed on the other substrate 50. Its structure is similar to the support member shown in FIG.

第３図による装置の実施例は、原則として第１図による
ものと同様であるが、ただし押上部材が成形金型に一体
化している点だけが異なる。この装置は基板６２．６３
を備えた閉鎖ユニット６１で構成される。力発生装置６
４は、シリンダ６５を備えた液圧ピストンによって示さ
れている。閉鎖ユニット６１内の基板６２と６３との間
に成形金型６６を配置し、この金型は成形金型半部６７
．６８で構成され、それらの間に金型中空部６９を形成
する。混合装置７０は下部成形金型半部６８に一体化さ
れている。さらに、ここにはピストンシリンダユニット
７１として形成された押上部材が組込まれ、そのうち１
個のみを図示する。短行程ピストン７２の下に輪液圧室
７３を配置する。The embodiment of the device according to FIG. 3 is in principle similar to that according to FIG. 1, with the only difference that the push-up element is integrated into the mold. This device has a board 62.63
It consists of a closing unit 61 with a Force generator 6
4 is indicated by a hydraulic piston with cylinder 65. A molding die 66 is arranged between substrates 62 and 63 in the closure unit 61, which mold half 67
．． 68, forming a mold hollow part 69 therebetween. The mixing device 70 is integrated into the lower mold half 68. Furthermore, a push-up member formed as a piston cylinder unit 71 is incorporated here, one of which is
Only the pieces are shown. A ring hydraulic chamber 73 is arranged below the short stroke piston 72.

押上部材７１用の力発生装置並びに制御系を有する制御
装置については図示せず、これらは第１図によるものと
同様である。短行程ピストン７２は、上部成形金型半部
６７の支持面７４に対し直接作用する。A force generating device for the push-up member 71 and a control device with a control system are not shown, and these are the same as in FIG. 1. The short stroke piston 72 acts directly against the support surface 74 of the upper mold half 67 .

第４図による装置の実施例においては、さらに離間プレ
ート８１を設け、これを成形金型８２の分離面に必要に
応じ周囲に延在させかつ下部成形金型半部８３の対応溝
部に封止挿入する。押上部材８４は、離間プレート８１
に対し直接作用する。In the embodiment of the device according to FIG. 4, a spacing plate 81 is further provided, which extends around the separation surface of the mold 82 as required and is sealed into a corresponding groove in the lower mold half 83. insert. The push-up member 84 is connected to the spacing plate 81
acts directly on

この装置におけるその他の構成は、第１図によるものと
同様である。The rest of the structure of this device is the same as that shown in FIG.

〔発明の効果〕〔Effect of the invention〕

以上、本発明によれば、成形金型に必要とされる後期圧
力が好適に得られ、形状の複雑な特に細長い成形部品を
無傷で形状および寸法を安定して製造することができ、
通常の許容充填量範囲内で操作することができ、さらに
急速に反応する反応混合物についても有効に使用するこ
とができる。As described above, according to the present invention, the late-stage pressure required for the molding die can be suitably obtained, and particularly elongated molded parts with complicated shapes can be manufactured without damage and with stable shapes and dimensions.
It can be operated within the usual permissible loading range and can be used effectively even with rapidly reacting reaction mixtures.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は押上部材として液圧式ピストンシリンダユニッ
トを閉鎖ユニットの基板上に配置した装置の縦断面図、 第２図は押上部材として液圧式クッションを閉鎖ユニッ
トの基板上に配置した装置の縦断面図、第３図は押上部
材として液圧式ピストンシリンダユニットを成形金型中
に一体化した装置の縦断面図、 第４図は押上部材として液圧式ピストンシリンダユニッ
トをさらに離間プレートを介し成形金型に一体化させた
装置の縦断面図である。 １・・−閉鎖ユニット、２．３・・一基板、４・−・力
発生装置、８・−ピストンシリンダユニット、１）・・
・貯槽、１４・〜制御装置、１５．１６−・成形金型半
部、１７・−・・成形金型、１日−・・金型中空部、１
９−混合装置、２７−・−押上部材、３３・・−支持部
材。 手続補正書 ３．補正をする者 事件との関係　　　特許出願人 名　　称　　バイエル・アクチェンゲゼルシャフト４、
代理人 郵便番号　　１０５ ６、補正の対象　　　　明　細　書 ７、補正の内容　　　　願書に最初に添付した明細書の
浄書・別紙の通り（内容に変更なし）Fig. 1 is a longitudinal cross-sectional view of a device in which a hydraulic piston cylinder unit is arranged on the base of a closing unit as a push-up member, and Fig. 2 is a longitudinal cross-section of a device in which a hydraulic cushion is arranged as a push-up member on the base of a closing unit. Figure 3 is a longitudinal sectional view of a device in which a hydraulic piston cylinder unit is integrated into a molding die as a push-up member, and Figure 4 is a vertical cross-sectional view of a device in which a hydraulic piston-cylinder unit is further integrated as a push-up member into a molding die via a separation plate. FIG. 1.--Closing unit, 2.3.--One substrate, 4.--Force generator, 8.--Piston cylinder unit, 1).
- Storage tank, 14 - Control device, 15. 16 - Molding mold half, 17 - Molding mold, 1st - Mold hollow part, 1
9-mixing device, 27--pushing member, 33...-supporting member. Procedural amendment 3. Relationship with the person making the amendment Patent applicant name: Beyer Akchengesellschaft 4;
Agent postal code 105 6. Subject of amendment Specification 7. Contents of amendment As per the engraving and attached sheet of the specification originally attached to the application (no change in content)

Claims (10)

【特許請求の範囲】[Claims] （１）成形金型（１７、６６、８２）を付設された閉鎖
ユニット（１、４７、６１）によつて閉鎖し、反応混合
物を導入すると共に、この導入が終了した後に金型中空
部（１８、６９）内の圧力を導入過程の際に内部で支配
する圧力よりも高くし、かつ成形金型（１７、６６、８
２）を成形部品の硬化過程が終了するまで閉鎖させ続け
、次いで開放して成形部品を取り出す、少なくとも２種
の流動性反応成分からなる密実もしくは微孔質プラスチ
ック、特にウレタン形成性の流動性反応混合物から成形
部品を製造する方法において、成形金型（１７、６６、
８２）を第１閉鎖位置まで移動させ、この第１閉鎖位置
にて閉鎖運動に対し垂直に存在する金型中空部（１８、
６９）の成形面を第２終端閉鎖位置における間隔よりも
最高５ｍｍ大きい間隔まで互いに接近させ、これら成形
金型半部（１５；１６、６７；６８、８３）の位置を充
填過程の間維持すると共に、これら成形金型半部（１５
；１６、６７；６８、８３）を充填過程の終了後に初め
て終端閉鎖位置に到らしめることを特徴とする成形部品
の製造方法。(1) The molding mold (17, 66, 82) is closed by the attached closing unit (1, 47, 61), the reaction mixture is introduced, and after the introduction is finished, the mold hollow part ( 18, 69) is higher than the pressure prevailing inside during the introduction process, and the molding die (17, 66, 8
2) remains closed until the end of the curing process of the molded part and then opens to remove the molded part, a solid or microporous plastic, in particular a urethane-forming fluid, consisting of at least two flowable reactive components; In a method for producing a molded part from a reaction mixture, a mold (17, 66,
82) to a first closed position, in which the mold hollow (18,
69) are brought closer together to a distance of at most 5 mm greater than the distance in the second end closed position, and the position of these mold halves (15; 16, 67; 68, 83) is maintained during the filling process. Along with these molding mold halves (15
; 16, 67; 68, 83) to reach the end-closed position only after the completion of the filling process. （２）成形金型（１７、６６、８２）を第１閉鎖位置に
移動させ、この第１閉鎖位置にて閉鎖運動に対し垂直に
存在する金型中空部（１８、６９）の成形面を、第２閉
鎖位置における間隔よりも０．０１ｍｍ〜１．０ｍｍ大
きい間隔まで互いに接近させることを特徴とする特許請
求の範囲第１項記載の方法。(2) Move the molding die (17, 66, 82) to the first closed position, and in this first closed position, the molding surface of the mold hollow part (18, 69) that is perpendicular to the closing movement is 2. A method according to claim 1, characterized in that they are brought closer together to a distance of 0.01 mm to 1.0 mm greater than the distance in the second closed position. （３）成形金型半部（１５；１６、６７；６８、８３）
を複数段階にて終端閉鎖位置に到らしめることを特徴と
する特許請求の範囲第１項または第２項記載の方法。(3) Molding mold half (15; 16, 67; 68, 83)
3. The method according to claim 1, wherein the terminal closing position is reached in a plurality of stages. （４）終末閉鎖運動を混合物導入の間に閉鎖ユニットの
閉鎖力より大きい抗力にて抑制し、この抗力を混合物導
入の終了後に解除することを特徴とする特許請求の範囲
第１項〜第３項のいずれか一項に記載の方法。(4) The terminal closing movement is suppressed by a drag force greater than the closing force of the closing unit during the introduction of the mixture, and this drag force is released after the end of the introduction of the mixture. The method described in any one of paragraphs. （５）閉鎖ユニット（１、４７、６１）と成形金型（１
７、６６、８２）および反応成分用の混合装置（１９、
４８、７０）とからなり、それぞれ１個の成形金型半部
（１５；１６、６７；６８、８３）がそれぞれ閉鎖ユニ
ット（１、４７、６１）の基板（２；３、４４；５０、
６２；６３）上に配置されてなる、少なくとも２種の流
動性反応成分からなる密実もしくは微孔質プラスチック
、特にポリウレタン形成性の流動性反応混合物から成形
部品を製造する装置において、成形金型（１８、６７、
８２）には混合物充填過程の間に閉鎖ユニット（１、４
７、６１）の閉鎖力に抗して作用する押上部材（２７、
４１、７１、８４）を付設し、その行程を制限しうると
共に調時制御しうることを特徴とする成形部品の製造装
置。(5) Closing unit (1, 47, 61) and molding die (1
7, 66, 82) and mixing devices for the reaction components (19,
48, 70), and one mold half (15; 16, 67; 68, 83) respectively comprises a substrate (2; 3, 44; 50,
62;63) In an apparatus for producing molded parts from a solid or microporous plastic, in particular polyurethane-forming, fluid reaction mixture comprising at least two fluid reaction components arranged on the mold, (18, 67,
82) has a closing unit (1, 4) during the mixture filling process.
a push-up member (27, 7, 61) that acts against the closing force of
41, 71, 84), and is capable of limiting the stroke and controlling the timing thereof. （６）押上部材（２７、７１、８４）がピストンおよび
シリンダを備えた液圧ユニットからなることを特徴とす
る特許請求の範囲第５項記載の装置。(6) The device according to claim 5, characterized in that the push-up member (27, 71, 84) consists of a hydraulic unit equipped with a piston and a cylinder. （７）押上部材（４１）が液圧式圧力クッションからな
ることを特徴とする特許請求の範囲第５項記載の装置。(7) The device according to claim 5, characterized in that the push-up member (41) consists of a hydraulic pressure cushion. （８）押上部材（２７、４１）を閉鎖ユニット（１、４
７）に配置したことを特徴とする特許請求の範囲第５項
〜第７項のいずれか一項に記載の装置。(8) Push up members (27, 41) into closing units (1, 4)
7) The device according to any one of claims 5 to 7, characterized in that the device is arranged in a device according to any one of claims 5 to 7. （９）押上部材（２７、４１）を閉鎖ユニット（１、４
７）の一方の基板（３、４４）上に配置すると共に、調
整自在な支持部材（３３、４９）を他方の基板（２、５
０）上に配置したことを特徴とする特許請求の範囲第８
項記載の装置。(9) Push up members (27, 41) into closing units (1, 4)
7) on one of the substrates (3, 44), and the adjustable support member (33, 49) is placed on the other substrate (2, 5).
0) Claim 8, characterized in that
Apparatus described in section. （１０）押上部材（２７、３３、４１、４９、７１、８
４）用の力発生装置（２８；２９；３０）を閉鎖ユニッ
ト（１、４７、６１）用の力発生装置４、８、６４）に
連結すると共に、これら両装置を制御装置（１４）内の
混合装置（１９、４８、７０）のプログラム送信器に接
続したことを特徴とする特許請求の範囲第５項〜第９項
のいずれか一項に記載の装置。(10) Push-up member (27, 33, 41, 49, 71, 8
4) are connected to the force generators (28; 29; 30) for the closing unit (1, 47, 61) (4, 8, 64) and both devices are connected in the control device (14). 10. Device according to any one of claims 5 to 9, characterized in that it is connected to a program transmitter of a mixing device (19, 48, 70).
JP61144026A 1985-06-22 1986-06-21 Method and device for manufacturing molded part from solid or microporous plastic consisting of at least two kind of fluidizing reaction component, particularly, fluidizing reaction mixture having polyurethane formability Granted JPS625820A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3522377.4 1985-06-22
DE19853522377 DE3522377A1 (en) 1985-06-22 1985-06-22 METHOD AND DEVICE FOR THE PRODUCTION OF MOLDED PARTS FROM A SOLID OR MICROCELLULAR PLASTIC, IN PARTICULAR POLYURETHANE-FORMING, FLOWABLE REACTION MIXTURE FROM AT LEAST TWO FLOWABLE REACTION COMPONENTS

Publications (2)

Publication Number Publication Date
JPS625820A true JPS625820A (en) 1987-01-12
JPH0570565B2 JPH0570565B2 (en) 1993-10-05

Family

ID=6273904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61144026A Granted JPS625820A (en) 1985-06-22 1986-06-21 Method and device for manufacturing molded part from solid or microporous plastic consisting of at least two kind of fluidizing reaction component, particularly, fluidizing reaction mixture having polyurethane formability

Country Status (4)

Country Link
US (1) US4714579A (en)
EP (1) EP0206100B1 (en)
JP (1) JPS625820A (en)
DE (2) DE3522377A1 (en)

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US4985210A (en) * 1988-09-09 1991-01-15 501 Toyota Jidosha Kabushiki Kaisha Exhaust gas purifying apparatus for automobile
US5140811A (en) * 1989-10-27 1992-08-25 Toyota Jidosha Kabushiki Kaisha Exhaust gas purification device in variable combination of absorbent and catalyst according to gas temperature
JP2011046038A (en) * 2009-08-26 2011-03-10 Ｂａｓｆ Ｉｎｏａｃポリウレタン株式会社 Method for manufacturing polyurethane foam
WO2011027228A1 (en) 2009-09-03 2011-03-10 Johnson Matthey Public Limited Company Improvements in emission control

Also Published As

Publication number Publication date
EP0206100A2 (en) 1986-12-30
EP0206100B1 (en) 1990-08-22
DE3673572D1 (en) 1990-09-27
EP0206100A3 (en) 1988-12-07
JPH0570565B2 (en) 1993-10-05
US4714579A (en) 1987-12-22
DE3522377A1 (en) 1987-01-02

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